Published:2009/05/11  Last Updated:2009/05/12

Cross-site scripting vulnerability in SKIP from SKIP User Group


SKIP from SKIP User Group contains a cross-site scripting vulnerability.

Products Affected

  • SKIP ver.1.0.2 and earlier
  • SKIP ver.1.1RC2 and earlier


SKIP from SKIP User Group is an open source SNS (Social Networking Service) software. SKIP contains a cross-site scripting vulnerability.


An arbitrary script may be executed on certain web browsers.


Update the software
Update to the latest version according to the information provided by the vendor.

Vendor Status

Vendor Link
SKIP User Group SKIP ver1.1.0 to be released (Japanese Only)


JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2009.05.11

Measures Conditions Severity
Access Required Routed - can be attacked over the Internet using packets
  • High
Authentication Limited - self-registration, perhaps valid e-mail
  • Medium-High
User Interaction Required Simple - the user must be convinced to take a standard action that does not feel harmful to most users, such as click on a link or view a file
  • Medium
Exploit Complexity Low - little to no expertise and/or luck required to exploit (cross-site scripting)
  • High

Description of each analysis measures


Gaku Mochizuki of Mitsui Bussan Secure Directions, Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the vendor under Information Security Early Warning Partnership.

Other Information

JPCERT Reports
CERT Advisory
CPNI Advisory
CVE CVE-2009-1908
JVN iPedia JVNDB-2009-000025

Update History